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Finding the Fourth Proportional to 75,009.92, 103,419.60 and 48,104.96

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Solution

The fourth proportional to 75,009.92, 103,419.60 and 48,104.96 is: 66,324.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,009.92 : 103,419.60 = 48,104.96 : x
  2. Step 2: Convert to fraction form
    75,009.92/103,419.60 = 48,104.96/x
  3. Step 3: Cross multiply
    75,009.92x = 103,419.60 × 48,104.96
  4. Step 4: Simplify right side
    75,009.92x = 4,974,995,721.22
  5. Step 5: Solve for x
    x = 4,974,995,721.22/75,009.92
  6. Step 6: Final answer
    x = 66,324.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.